Distance and brake reaction rod construction for motor vehicles



Feb. 6, E923..

D. G. ROOS. DI STANCE AND BRAKE REACT oN RoD -CONSTRUCU oN FoR 'MOTOR VEHI cLEs.

3 SHEETS-SHEET 1 F l LED APR. 19, l 920.

@m www 3 sHEETs-sHEET 2 D. G. ROOS.

F I I ED APR. 19 1920.

Feb. 6, 1923.

DISTANCE AND BRAKE REACTION Ron CONSTRUCTION Eon MoToR VEHICLES.

Sv.) l- SVIIIIL.; I

Patented Feb. (el, 1192733.

Gr. ROOS, 0F BRIDGEPDRT, CONNECSCUT, ASSGNUR TO THE LOCOMOBILE CGI-[[PNY, OF BRIDGEPORT, CNNECTCUT, A CORPGRATION OF DELAWARE.

DXSTNCE AND BRAKE BECTXON R01) Iapplication led April 19,

To all whom it' may concern.'

Be it known that l, DELMAR G. Roos, a citizen of the United States, and a resident of Bridgeport, in the county of Fairfield and State of Connecticut, have invented an Improvement in Distance and BrakeReaction Rod Constructions for Motor Vehicles, of which the following description, in connection with the accompanying drawings, is a specication, like characters on the drawings representing like parts.

rllhis invention relates to motor vehicles, and is more especially concerned with the distance or radius rods commonly employed to prevent forward or backward displacement of therear axle with relation to the main frame. These distance rods vsometimes support the brakes, and thus receive the brake reaction stresses. These rods oscillate about the axle, and the consequent wear at this point eventually results in looseness and annoying rattling of the connections between the rods and the axle. My invention aims to provide simple, strong and effective means of adjustment to compensate for this wear, whereby to avoid the rattling which commonly occurs.

My invention will be best understood by reference `-to the following description, when taken in connection with the accompanying' drawings of a portion of a motor vehicle exemplifying my invention, while its scope will be more particularly pointed out in the appended claims.

1n the drawings:

Fig. l is a side elevation partly in vertical section of the rear end of a motor vehicle exemplifying my invention;

Fig. 2 is a sectional view on an enlarged scale on line 2--2 of Fig. 1;

Fig. 3 is a side elevation on an enlarged scale of that portion of the distance rod which encircles the axle; and

Fig. 4 is a sectional view on line 4 4 of Fior. 3.

lbeferring to the drawings, and to the embodiment of my invention which 1 have selected for exempliiication, 1 have there shown a portion of a motor vehicle comprising a usual frame 5 (see Fig. l), supported in a known manner on the rear axle 7 by springs 9 and 11. It should be understood of course that duplicate springs are employed on opposite sides, respectively, of

CONSTR'UCTON FOR MCO'EOR VEHICLES.

1920. Serial No. 374,893.

the frame, and that the brakes and distance and brake reaction rods are also in duplicate, but it is deemed unnecessary herein to show or describe but one set. r1`he springs are supported on the axle through the medium of usual spring seats 13 (see Fig. 2), in which the axle oscillates, it being understood, of course, that in this type of construction, it is customary to employ a torque arm (not herein shown) to tal-:e the torque reaction stresses set up by the transmission of power through shafts 15 to wheels 17, the latter being herein mounted to turn on annular bearings 19 and 21 on the tubular axle 7.

Secured to the wheels are suitable brake drums, herein two distinct drums 23 and 25, one for an external band-brake 27, and the other for an internal expanding brake 29. ln the present example, both sets of brakes and their operating mechanisms are mounted in a known manner on a distance and brake reaction rod 31, whose forward end is pivoted at 33 on a bracket 35 constituting a part of the main frame 5. The details of construction and mode of operation ofthe brakes are too well known to require further description. Relative up and down motion between the frame and axle is accompanied by swinging motion of the rods 31 about their pivots 33 and about the axle 7, and the rods maintain a fixed distance between said axle and pivots in the usual manner.

1 will now describe the construction of the novel connection between the distance rods, and the axle, whereby any play which develops at this point because of wear may be compensated for by making an appropriate adjustment. Referring now to Figs. 3 and 4, each distance rod is provided with a sleeve encircling the axle, and in the present example, this sleeve is composed of two parts, a body 37 and ar cap 39, provided, respectively, with opposed abutments 41 and 48. Herein, hardened steel collars 45 and 47 prevent undue wear on the end surfaces of these abutments. The sleeve is chambered to provide a space for a pair of internally and oppositely tapered collars 49 and 51, and a pair of externally and oppositely tapered collars 53 and 55, one pair being mounted to turn on the other. The collars 49 and 51 may be suitably held againstV turning movement wlithj respectl to the surroundingsleeve, as by leys 50` and 52, and the collars 53 and 55 mayV beheld against turning zmovement with relation to the @file as, by :keys 54 amil v5.6. .lh 'Pme tice, tlie "collars 49 and 51 'are lpreferably made of-bronze, while the collars 53 and55 areiiiadeihardened steel. r1he outer eollars 49 and 51 abut against the abutments 41 and 43, respectively, while the collars 53 and 55 abut against each other, or against one'or more, herein a plurality ot' shims 57 interposed therebetween. rlhe inner ends of thegcollars 49 and51should at all times bespacfedf apart," and if, at any time, through long Acntirnied wear of the bearing surfaces,

said collars approa other, onenor more shims 57'1nay be inserted between the adjacent ends of the inner collars 53 and 55. When the vehicle new, itis unnecessary toprovide these shims, and theybecomenec'es'sary' only Eafter many thousands of miles fot use. Suitable clearance spaces 59 A"and ,61 are fpro/vided between 'the outer ends of the collars 53 and 55 and the abutments `43.

Adjustment for wear between the bearing snrf'acesf the inner and outer pairs of tapered collars is 'accomplished by adjusting the oiiter cllarsto'ward each other, and this may be eitectedby anysuitable means, such asa set of boltsf63 extending through a web onthe body 37 of the distancerod, land through-"a circumterential 'flange 67 on the cap 37. These boltsl are rendered accessible bysimply removing the wheel 17 and reaching through the internal expanding brakes 29. Inward movement of the'cap 39 under the influence 'of .the adjusting bolts 63 may i be limited bysuitable means, such as one or' of shims 69 in the more, lherein a'plurality between the adjaorin o f rings interposed lisent/faces of the web 65 and theflange 67.

the outer collars 49 and 51 from binding on the inner vcollars 53 Vand 55. As wear takes place, one

By this means,

'or' more of the shirns 69may be removed, and

theparts reassembled, the bolts 63 clamping themtogether, and maintaining the adjustnient.f Preferably, the body 37 and cap 39 are provided with means to guide yone on the other, and to hold them inI axial aligmnent,

suchv` means herein comprising an internal bore 71 formed in the body 37 and present- Ving an" internal cylindrical 'surface forming aguide for the outer cylindrical surface ofa 'boss 73 formed onra cap 39. The depth 'of the 'bore 7l should be suiiicient to allofnT tor the maximum adjustment of the cap 39 to- 'ward the body ,j 37.

VHaving thus described one embodiment of Ay invention, but without limitingimyself "thereto, whatl claim and desire to secure by Letters Patentie: i

1. In a motor vehicle, the combination of ch "and finally meet each a frame, an axle, a distance rodpivotally connected to saidft'rame and `hayinga sleeve encircling said axle and arranged to turn about the latter,and means, including a ta- 4pereld collar i interposed between "said *axle andsaid sleeve yto take up play in the connection between said axle and said sleeve.

2. ilnarntor vehicle, theeonibin'ationof a frame, an axle,a distance rod pivotally connected to said iframe and having a sleeve encircling said axle and arranged to turn-about the latter, and means including apairh'otjoppositely tapered collarsinterposed between said axle and saidsleeye, to take upjplay in the connection between said axle "and said Sleeve- 3- n e motor vehicle, thecomblmil ,j e trame, an axle, adistance` rod pivotally connectedto said frame and havingja sleever encircling said axleA and arranged t9, @19H1 about the latter, andvumeans including two pairs ot' oppositely tapered eollarsinterposed between said axle vand saidj sleevehtof take 'up playin the connection'between saidaxl'e Iand said sleeve.l Y A j o,

4. `ln a motorv hicle,the combinationjot a trame, an axle,`av distance rod pivotally con'- nected to said trame having asleeveencircling said axle -and arranged to turn abojut the latter, said sleeve comprising two parts provided with opposed abutments,uai pair" of internally and `oppositely taperedwcollarsfinterposed between and abutting againstfsaid abutment's within vsaid sleeve apair effexternally and opp ositely tapered collars, abutting end to end'A withinthefirst-mentioned collars, and means fior relatively;adjusting said sleevepartstoward eachether.L L

5. ln a motor vehi le, the combination a frame, an axle, aV distance `rodpir/totallyconnected to said lframe andlhaving la' sleeve'encirclingsajidiaxle and arranged to turn4 ybout the latter, said sleeve, comprising two-parts provided with opposed abutgnents, of

internally and oppositely tapered collarsfinterposed between andA rabutting against-"said abutments, within said sleeve, al pairf'jfextapered collars abutternally andjoppositelyl 'ting end to ,endH withinwthe "inst-mentioned collars, means for relatively "adjjisting lsaid sleeveparts toward eachA other and means Ato `limit the movement of said'sleeve partstoternally and oppositely tapered 'collais vabut- "ting end to enduwithin the first-nienti'owrie'd collars. means for relatively adjustingsaild aloutments Within said sleeve, a pair oiC externally and oppoaitely tapered collare abutting end to end Within the inst-mentioned collars, means for relatively adjusting said sleeve parte toward each other7 and a plurality of ehims to limit the movement of said Sleeve parts toward each other.

ln testimony whereof, l have signed my name to this specification.

DELE/IAR G. ROOS. 

